To unblock a locked SIM card

1When SIM card locked appears, enter the PUK code and tap OK.

2Enter a new PIN code and tap OK.

3Reenter the new PIN code and tap OK.

If you enter an incorrect PUK code too many times, the SIM card becomes blocked. If this happens, contact your service provider to get a new SIM card.

Setting a screen lock

To set a screen lock

1From your Home screen, tap > Settings > Location & security > Set up screen lock.

2Select an option.

It is very important that you remember your screen unlock pattern, PIN or password. If you forget this information, it may not be possible to restore important data such as contacts and messages. Refer to Sony Ericsson Customer support for more information.

To create a screen unlock pattern

1From the Home screen, tap .

2Find and tap Settings > Location & security > Set up screen lock > Pattern.

3Follow the instructions in your phone. You are asked to select a security question that will be used to unlock the phone if you forget your screen unlock pattern.

To unlock the screen using a screen unlock pattern

1Activate the screen.

2Draw your screen unlock pattern.

If the unlock pattern you draw on the screen is rejected five times in a row, you can select to either wait 30 seconds and then try again, or to answer the security question you have selected.

To change the screen unlock pattern

1From the Home screen, tap .

2Find and tap Settings > Location & security > Change screen lock.

3Follow the instructions in your phone.

To disable the screen unlock pattern

1From your Home screen, tap > Settings > Location & security > Change screen lock.

2Draw the screen unlock pattern.

3Tap None.

To create a screen unlock PIN

1From your Home screen, tap > Settings > Location & security > Set up screen lock > PIN.

2Enter a numeric PIN and tap Continue.

3Confirm you PIN and tap OK.

To disable the screen unlock PIN

1From your Home screen, tap > Settings > Location & security > Change screen lock.

2Enter you PIN and tap Continue.

3Tap None.

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